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Expired European patentEurope

Start-up and shifting clutch mechanism

EP 0247049 B1 · Applicant: ZF FRIEDRICHSHAFEN Aktiengesellschaft

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed February 18, 1986 and granted August 30, 1989. A European patent lasts at most 20 years from filing, so its term ended February 18, 2006.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by August 18, 2011.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledFebruary 18, 1986
PublishedDecember 2, 1987
GrantedAugust 30, 1989
Term endedFebruary 18, 2006
Application numberEP 86901385
Classification (CPC)F16D48/02 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedFeb 18, 1986PublishedDec 2, 1987Patent grantedAug 30, 1989Term endedFeb 18, 2006

Sources & verification